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Aircraft STC directory

Textron Aviation 177B STCs

The Jun 30, 2026 FAA DRS snapshot contains 7 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 177B. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

7
listed Current at snapshot
4
holder directories
4
modification categories
Dec 16, 2022
latest recorded revision

Modification demand surface

Other aircraft modifications2Aircraft structures2Propellers2Engine and powerplant1

Recorded holders

Curry Aviation LLC3Aero-Mach Wilco LLC1Hartzell Propeller Inc1MT- Propeller Entwicklung GmbH1

Recently revised 177B STCs

Showing the 7 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.